Carlos F. Torres - Academia.edu (original) (raw)
Uploads
Papers by Carlos F. Torres
Flow Measurement and Instrumentation, 2015
Wire-Mesh sensors (WMS), developed at HZDR , are potential tools to measure phase fraction distri... more Wire-Mesh sensors (WMS), developed at HZDR , are potential tools to measure phase fraction distributions quantitatively and visualize two-phase pipe flow phenomena with a very high temporal resolution. They have been extensively applied to a wide range of two-phase gas-liquid flow situations with conducting and non-conducting liquids. However, for very low liquid loadings the state of the art data evaluation algorithms for WMS data suffer under the comparable low spatial resolution and under boundary effects, caused by the flange rings -especially in case of capacitance type WMS. . To understand the flow phenomena of the stratified wavy structure an accurate reconstruction of the liquid-gas interface is essential. Due to the comparable low spatial resolution of app. 5 mm, the liquid-gas interface recognition has always an unknown uncertainty level since a specific threshold level for the ISO-surface has to be applied. In this work a new algorithm for refined liquid-gas interface reconstruction is introduced, using a-priory information in case of completely stratified flow situations.
Flow Measurement and Instrumentation, 2015
Wire-Mesh sensors (WMS), developed at HZDR , are potential tools to measure phase fraction distri... more Wire-Mesh sensors (WMS), developed at HZDR , are potential tools to measure phase fraction distributions quantitatively and visualize two-phase pipe flow phenomena with a very high temporal resolution. They have been extensively applied to a wide range of two-phase gas-liquid flow situations with conducting and non-conducting liquids. However, for very low liquid loadings the state of the art data evaluation algorithms for WMS data suffer under the comparable low spatial resolution and under boundary effects, caused by the flange rings -especially in case of capacitance type WMS. . To understand the flow phenomena of the stratified wavy structure an accurate reconstruction of the liquid-gas interface is essential. Due to the comparable low spatial resolution of app. 5 mm, the liquid-gas interface recognition has always an unknown uncertainty level since a specific threshold level for the ISO-surface has to be applied. In this work a new algorithm for refined liquid-gas interface reconstruction is introduced, using a-priory information in case of completely stratified flow situations.